Typical distribution of keratotic papules in the seborrheic regions. Courtesy of Susan Mallory, MD, Director of Pediatric Dermatology, Washington University School of Medicine.

Longitudinal ridges, red and white lines, and V-shaped nicks. Courtesy of Susan Mallory, MD, Director of Pediatric Dermatology, Washington University School of Medicine.

Acantholysis and dyskeratosis (abnormal keratinization) are the 2 main features of Darier disease. Loss of epidermal adhesion with acantholysis frequently results in the formation of suprabasal clefts (lacunae).

Disclosure: Received honoraria from Amgen for consulting; Received honoraria from Abbvie for consulting; Received honoraria from Galderma for speaking and teaching; Received consulting fee from Lilly for consulting; Received ownership interest from www.DrScore.com for management position; Received ownership interest from Causa Reseasrch for management position; Received grant/research funds from Janssen for consulting; Received honoraria from Pfizer for speaking and teaching; Received consulting fee from No.

Chief Editor

Dirk M Elston, MD Professor and Chairman, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina College of Medicine

Arash Taheri, MD Research Fellow, Center for Dermatology Research, Department of Dermatology, Wake Forest University School of Medicine

Disclosure: Nothing to disclose.

Acknowledgements

The authors and editors of Medscape Reference gratefully acknowledge the contributions of previous authors, Sarah Fitzmaurice, MD, Jillian Wong Millsop, MD, MS, Tina Bhutani, MD, and Wilson Liao, MD, to the development and writing of this article.